{
  "bibcode": "2013GCN.14834....1C",
  "body": "J. R. Cummings (GSFC/UMBC), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),\nE. E. Fenimore (LANL), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA),\nA. Y. Lien (NASA/GSFC/ORAU), C. B. Markwardt (GSFC), D. M. Palmer (LANL),\nT. Sakamoto (AGU), G. Sato (ISAS), M. Stamatikos (OSU), J. Tueller (GSFC),\nT. N. Ukwatta (MSU)\n(i.e. the Swift-BAT team):\n  \nUsing the data set from T-60 to T+243 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 130609A (trigger #557782)\n(Cummings, et al., GCN Circ. 14828).  The BAT ground-calculated position is\nRA, Dec = 152.680, 24.124 deg which is\n    RA(J2000)  =  10h 10m 43.2s\n    Dec(J2000) = +24d 07' 27.1\"\nwith an uncertainty of 1.2 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 87%.\n  \nThe mask-weighted light curve shows a single FRED peak.  T90 (15-350 keV) is\n7.0 +- 0.8 sec (estimated error including systematics).\n  \nThe time-averaged spectrum from T-1.19 to T+7.28 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.88 +- 0.11.  The fluence in the 15-150 keV band is 5.7 +- 0.4 x 10^-07 erg/cm2.\nThe 1-sec peak photon flux measured from T+0.52 sec in the 15-150 keV band\nis 1.8 +- 0.2 ph/cm2/sec.  All the quoted errors are at the 90% confidence\nlevel.\n  \nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/557782/BA/",
  "circularId": 14834,
  "createdOn": 1370785399000,
  "email": "james.r.cummings@nasa.gov",
  "subject": "GRB 130609A, Swift-BAT refined analysis",
  "submitter": "Jay R. Cummings at NASA/GSFC/Swift  <james.r.cummings@nasa.gov>",
  "eventId": "GRB 130609A"
}